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Table 1. Oculocutaneous Albinism Types

OCA Subtypes	Gene Position	Affected Protein
OCA 1 OCA 1A (tyrosinase-negative OCA) OCA 1B (yellow-mutant/Amish/ xanthous, temperature-sensitive) OCA 1A/1B heterozygote	11q14-21	Tyrosinase
OCA 2 (tyrosinase-positive OCA, brown OCA)	15q11-13	P protein
OCA 3	9p23	Tyrosinase-related protein

Table 2. Ocular Albinism Types

OA Subtypes

Gene Position

Affected Protein

OA 1 (X-linked recessive OA/Nettleshop-Falls type)

X p22.3-22.2

The protein product of the OA 1 gene named OA 1 (and also identified as GPR143 in GenBank)^{[2, 3]}

AROA

Not a distinct position

Tyrosinase in some cases;

P protein in some cases

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Author

Mounir Bashour, MD, PhD, CM, FRCSC, FACS Assistant Professor of Ophthalmology, McGill University Faculty of Medicine; Clinical Assistant Professor of Ophthalmology, Sherbrooke University; Medical Director, Cornea Laser and Lasik MD

Mounir Bashour, MD, PhD, CM, FRCSC, FACS is a member of the following medical societies: American Academy of Ophthalmology, American Association for Pediatric Ophthalmology and Strabismus, American College of International Physicians, American College of Surgeons, American Medical Association, American Society of Cataract and Refractive Surgery, American Society of Mechanical Engineers, American Society of Ophthalmic Plastic and Reconstructive Surgery, Biomedical Engineering Society, Canadian Medical Association, Canadian Ophthalmological Society, Contact Lens Association of Ophthalmologists, International College of Surgeons US Section, Ontario Medical Association, Quebec Medical Association, Royal College of Physicians and Surgeons of Canada

Disclosure: Nothing to disclose.

Coauthor(s)

Khalid Hasanee, MD Glaucoma and Anterior Segment Fellow, Department of Ophthalmology, University of Toronto

Khalid Hasanee, MD is a member of the following medical societies: Canadian Medical Association, Canadian Ophthalmological Society, Ontario Medical Association

Disclosure: Nothing to disclose.

Iqbal Ike K Ahmed, MD, FRCSC Clinical Assistant Professor, Department of Ophthalmology, University of Utah

Iqbal Ike K Ahmed, MD, FRCSC is a member of the following medical societies: American Academy of Ophthalmology, American Society of Cataract and Refractive Surgery, Canadian Ophthalmological Society, Ontario Medical Association

Disclosure: Nothing to disclose.

Specialty Editor Board

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Received salary from Medscape for employment. for: Medscape.

J James Rowsey, MD Former Director of Corneal Services, St Luke's Cataract and Laser Institute

J James Rowsey, MD is a member of the following medical societies: American Academy of Ophthalmology, American Association for the Advancement of Science, American Medical Association, Association for Research in Vision and Ophthalmology, Florida Medical Association, Sigma Xi, The Scientific Research Honor Society, Southern Medical Association, Pan-American Association of Ophthalmology

Disclosure: Nothing to disclose.

Chief Editor

Donny W Suh, MD, MBA, FAAP, FACS Professor, Department of Ophthalmology, Chief of Pediatric Ophthalmology and Adult Strabismus, Medical Director of Eye-Mobile, Gavin Herbert Eye Institute, UC Irvine Health, University of California, Irvine, School of Medicine; Associate Clinical Professor, Department of Pediatrics, Creighton University School of Medicine; Chief Medical Officer, Suh Precision Syringe, LLC; Medical Staff, Children’s Hospital of Orange County

Donny W Suh, MD, MBA, FAAP, FACS is a member of the following medical societies: American Academy of Ophthalmology, American Academy of Pediatrics, American Association for Pediatric Ophthalmology and Strabismus, American College of Healthcare Executives, American College of Surgeons, American Medical Association, Section on Ophthalmology, American Ophthalmological Society, International Strabismological Association, Iowa Medical Society, Metro Omaha Medical Society, National Eye Care Project, Nebraska Chapter of American Academy of Pediatrics, ORBIS, Surgical Eye Expeditions (SEE) International

Disclosure: Nothing to disclose.

Additional Contributors

Gerhard W Cibis, MD † Clinical Professor, Director of Pediatric Ophthalmology Service, Department of Ophthalmology, University of Kansas School of Medicine

Gerhard W Cibis, MD is a member of the following medical societies: American Academy of Ophthalmology, American Association for Pediatric Ophthalmology and Strabismus, American Ophthalmological Society

Disclosure: Nothing to disclose.